TOYOTA AVENSIS 2005 Service Repair Manual

056IK–10
–
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)05–245
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
DIAGNOSTIC TROUBLE CODE CHART
If a DTC is displayed during the DTC check, check the parts listed in the \
table below and proceed to the page
given.
HINT:

*1 :  ... MIL (Malfunction Indicator Lamp) light up

*2 : ’’ ’’ mark means ECM memorizes the malfunction code if the ECM detects the DT\
C detection
condition.

This DTC may be output when the clutch, brake and gear components etc. inside\
the automatic trans-
axle are damaged.
DTC No.
(See Page)Detection ItemTrouble AreaMIL *1Memory *2
P0500
( 05–158 )Vehicle Speed Sensor ”A”

Combination meter

Open or short in vehicle speed sensor circuit

Vehicle speed sensor

ECM

P0705
( 05–247 )Transmission Range Sensor Cir-
cuit Malfunction (PRNDL Input)
Open or short in park/neutral position switch circuit

Park/neutral position switch

ECM

P0710
( 05–252 )Transmission Fluid Temperature
Sensor ”A” Circuit
Open or short in ATF temperature sensor circuit

Transmission wire (ATF temperature sensor)

ECM

P0711
( 05–255 )Transmission Fluid Temperature
Sensor ”A” Performance
Open or short in ATF temperature sensor circuit

Transmission wire (ATF temperature sensor)

ECM

P0712
( 05–252 )Transmission Fluid Temperature
Sensor ”A” Circuit Low Input
Short in ATF temperature sensor circuit

Transmission wire (ATF temperature sensor)

ECM

P0713
( 05–252 )Transmission Fluid Temperature
Sensor ”A” Circuit High Input
Open in ATF temperature sensor circuit

Transmission wire (ATF temperature sensor)

ECM

P0717
( 05–258 )Turbine Speed Sensor Circuit No
Signal

Open or short in transmission revolution sensor NT (speed
sensor NT) circuit

Transmission revolution sensor NT (speed sensor NT)

ECM

Automatic transaxle assembly

P0724
( 05–261 )Brake Switch ”B” Circuit High

Short in stop light switch circuit

Stop light switch

ECM

P0741
( 05–264 )Torque Converter Clutch Sole-
noid Performance
(Shift Solenoid Valve SL)

Shift solenoid valve SL remains open or closed

Valve body is blocked

Shift solenoid valve SL

Torque converter clutch

Automatic transaxle (clutch, brake or gear etc.)

Line pressure is too low

ECM

P0751
( 05–268 )Shift Solenoid ”A” Performance
(Shift Solenoid Valve S1)

Shift solenoid valve S1 remains open or closed

Valve body is blocked

Shift solenoid valve S1

Automatic transaxle (clutch, brake or gear etc.)

ECM

P0756
( 05–271 )Shift Solenoid ”B” Performance
(Shift Solenoid Valve S2)

Shift solenoid valve S2 remains open or closed

Valve body is blocked

Shift solenoid valve S2

Automatic transaxle (clutch, brake or gear etc.)

ECM


05–246–
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E) P0787
( 05–274 )
Shift/Timing Solenoid Low
(Shift Solenoid Valve ST)
Short in shift solenoid valve ST circuit

Shift solenoid valve ST

ECM

P0788
( 05–274 )Shift/Timing Solenoid High
(Shift Solenoid Valve ST)
Open in shift solenoid valve ST circuit

Shift solenoid valve ST

ECM

P0973
( 05–277 )Shift Solenoid ”A” Control Circuit
Low (Shift Solenoid Valve S1)
Short in shift solenoid valve S1 circuit

Shift solenoid valve S1

ECM

P0974
( 05–277 )Shift Solenoid ”A” Control Circuit
High (Shift Solenoid Valve S1)
Open in shift solenoid valve S1 circuit

Shift solenoid valve S1

ECM

P0976
( 05–280 )Shift Solenoid ”B” Control Circuit
Low (Shift Solenoid Valve S2)
Short in shift solenoid valve S2 circuit

Shift solenoid valve S2

ECM

P0977
( 05–280 )Shift Solenoid ”B” Control Circuit
High (Shift Solenoid Valve S2)
Open in shift solenoid valve S2 circuit

Shift solenoid valve S2

ECM

P0998
( 05–283 )Shift Solenoid ”F” Control Circuit
Low (Shift Solenoid Valve SB)
Short in shift solenoid valve SB circuit

Shift solenoid valve SB

ECM

P0999
( 05–283 )Shift Solenoid ”F” Control Circuit
High (Shift Solenoid Valve SB)
Open in shift solenoid valve SB circuit

Shift solenoid valve SB

ECM

P2716
( 05–286 )Pressure Control Solenoid ”D”
Electrical
(Shift Solenoid Valve SLT)
Open or short in shift solenoid valve SLT circuit

Shift solenoid valve SLT

ECM

P2769
( 05–289 )Torque Converter Clutch Sole-
noid Circuit Low
(Shift Solenoid Valve SL)
Short in shift solenoid valve SL circuit

Shift solenoid valve SL

ECM

P2770
( 05–289 )Torque Converter Clutch Sole-
noid Circuit High
(Shift Solenoid Valve SL)
Open in shift solenoid valve SL circuit

Shift solenoid valve SL

ECM


05KAW–02
G30859
Intelligent
Tester II
DLC3
–
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)05–239
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
DTC CHECK/CLEAR
1. CHECK DTC WITH INTELLIGENT TESTER II
DTCs which are stored in the ECM can be displayed with the
Intelligent Tester II and generic OBD scantool.
These scan tools can display pending DTCs and current DTCs.
Some DTC aren’t stored if the ECM doesn’t detect a malfunc-
tion during consecutive driving. However, the detected mal-
function during once driving is stored as pending DTC.
(a) Connect the Intelligent Tester II to the Data Link Connec-
tor 3 (DLC3).
(b) Turn the ignition switch ON.
(c) Enter the following menus: Enter/ Power train/ Engine and ECT/ DTC/ Current (or Pending).
(d) Confirm the DTCs and freeze frame data and then write
them down.
(e) See page 05–245 to confirm the details of the DTCs.
NOTICE:
When simulating a symptom with the scan tool to check the
DTCs, use normal mode. For codes on DIAGNOSTIC
TROUBLE CODE CHART subject to ”2–trip detection log-
ic”, perform the following actions.
Turn the ignition switch OFF after the symptom is simulated
once. Then repeat the simulation process again. When the
problem has been simulated twice, the MIL illuminates and the
DTCs are recorded in the ECM.
2. CLEAR DTC WITH INTELLIGENT TESTER II
(a) Connect the Intelligent Tester II to the DLC3.
(b) Turn the ignition switch ON.
(c) Enter the following menus: Enter/ Power train/ Engine and ECT/ DTC/ Clear.
3. CLEAR DTC WITHOUT INTELLIGENT TESTER II
Disconnecting the battery terminal or remove the EFI and
ETCS fuses from the engine room R/B for 60 seconds or more.
But if you disconnect the battery terminal, you should do the
”INITIALIZE” procedure.

05L2J–01
C95801
E13 E12 E10 E9
– DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)05–233
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
TERMINALS OF ECM
1. ECM
HINT:
Each ECM terminal’s standard voltage is shown in the table below.
In the table, first follow the information under ”Condition”. Look under ”Symbols (Terminal No.)” for the termi-
nals to inspected. The standard voltage between the terminals is shown under ”Specific Condition”.
Use the illustration above as a reference for the ECM terminals.
Symbols (Terminals No.)Wiring ColorTerminal DescriptionConditionSpecified Condition
SLT+ (E12–13) –
SLT– (E12–12)P–L – PSLT solenoid signalEngine idle speedPulse generation
(See waveform 1)
THO (E12–32) – E2 (E13–28)V – BRATF temperature sensor
signalATF temperature: 115 C (239 F)
or moreBelow 1.5 V
ST (E12–20) – E1 (E13–5)R–B – BRST solenoid signalIG switch ONBelow 1 V
↑↑↑IG switch ON and R gear10 to 14 V
SL (E12–15) – E1 (E13–5)R – BRSL solenoid signalIG switch ONBelow 1 V
↑↑↑Vehicle driving under lock–up range10 to 14 V
S2 (E12–10) – E1 (E13–5)P – BRS2 solenoid signalIG switch ONBelow 1 V
↑↑↑1st or O/D gear10 to 14 V
↑↑↑2nd or 3rd gearBelow 1 V
S1 (E12–11) – E1 (E13–5)P–L – BRS1 solenoid signalIG switch ON10 to 14 V
↑↑↑1st or 2nd gear10 to 14 V
↑↑↑3rd or O/D gearBelow 1 V
SB (E12–8) – E1 (E13–5)L – BRSB solenoid signalIG switch ONBelow 1 V
NT+ (E12–26) – NT– (E12–34)B–O – BSpeed sensor (NT) signalVehicle speed 20 km/h (12 mph)Pulse generation
(See waveform 2)
SPT (E10–8) – E1 (E13–5)L – BRS shift position switch sig-
nalIG switch ON and shift lever S posi-
tion10 to 14 V
↑↑↑IG switch ON and shift lever except
S positionBelow 1 V
D (E10–10) – E1 (E13–5)LG–B – BRD shift position switch sig-
nalIG switch ON and shift lever D and
S position10 to 14 V
↑↑↑IG switch ON and shift lever except
D and S positionBelow 1 V
R (E10–11) – E1 (E13–5)R–Y – BRR shift position switch sig-
nalIG switch ON and shift lever R posi-
tion10 to 14 V
↑↑↑IG switch ON and shift lever except
R positionBelow 1 V

G23426
5 V/DIV
1 ms/DIVGND
GND
C42920C53419
5 V/DIV
0.5 ms/DIV
05–234– DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)KD
*1 (E10–31) – E1 (E13–5)W – BRKick–down switch signalIG switch ON and Accelerator pedal
is depressedBelow 1 V
↑↑↑IG switch ON and Accelerator pedal
is released10 to 14 V
SPD (E10–17) – E1 (E13–5)V–W – BRSpeed signalVehicle speed 20 km/h (12 mph)Pulse generation
(See waveform 3)
STP (E10–19) – E1 (E13–5)G–W – BRStop lamp switch signalBrake pedal is depressed7.5 to 14 V
↑↑↑Brake pedal is releasedBelow 1.5 V
SFTU (E10–2) – E1 (E13–5)R – BRUp shift switch signalIG switch ON and shift lever S posi-
tion10 to 14 V
↑↑↑IG switch ON and shift lever ”+”
position (Up shift)Below 1 V
SFTD (E10–1) – E1 (E13–5)B – BRDown shift switch signalIG switch ON and shift lever S posi-
tion10 to 14 V
↑↑↑IG switch ON and shift lever ”–”
position (Down shift)Below 1 V
P (E9–13) – E1 (E13–5)W–L – BRPark position switch sig-
nalIG switch ON and shift lever P posi-
tion10 to 14 V
↑↑↑IG switch ON and shift lever except
P positionBelow 1 V
N (E10–20) – E1 (E13–5)R – BRNeutral position switch
signalIG switch ON and shift lever N posi-
tion10 to 14 V
↑↑↑IG switch ON and shift lever except
N positionBelow 1 V
NSW (E13–23) – E1 (E13–5)B–W – BRPark neutral switch signalIG switch ON and shift lever P and
N positionBelow 1 V
↑↑↑IG switch ON and shift lever except
P and N position10 to 14 V
HINT:
*1: LHD
Waveform 1
Reference:
TerminalSLT+ – SLT–
Tool setting5V/DIV, 1ms/DIV
Vehicle conditionEngine idle speed
Waveform 2
Reference:
TerminalNT+ – NT–
Tool setting5V/DIV, 0.5ms/DIV
Vehicle conditionVehicle speed 20 km/h (12 mph)

GND
A05135C53421
5 V/DIV
20 ms/DIV
– DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)05–235
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
Waveform 3
Reference:
TerminalSPD – E1
Tool setting5V/DIV, 20ms/DIV
Vehicle conditionVehicle speed 20 km/h (12 mph)

05KAT–02
– DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)05–227
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
MONITOR DRIVE PATTERN
1. MONITOR DRIVE PATTERN FOR ECT TEST
(a) Perform this drive pattern as one method to simulate the detection conditions of the ECT malfunctions.
(The DTCs may not be detected due the actual driving conditions. And some codes may not be de-
tected through this drive pattern).
HINT:
Preparation for driving

Warm up the engine sufficiently. (Engine coolant temperature is 60
C (140
F) or higher)

Drive the vehicle when the atmospheric temperature is –10
C (14
F) or higher. (Malfunction is not
detected when the atmospheric temperature is –10
C (14
F) or less)
Driving note

Drive the vehicle through all gears.
Stop → 1st → 2nd → 3rd → 4th → 4th (lock–up ON).

Perform engine brake test in the S position.
While driving in the 4(S) position and 4th gear lock–up, shift into the ”–” position and down–shift from
4th to 3rd, 3rd to 2nd, 2nd to 1st.
Check that the engine brake performs properly whenever down–shift takes place.

Repeat the above driving pattern three times or more.
NOTICE:

When using the intelligent tester II, monitor status can be found in the ”Power train / Engine and
ECT / Data List”.

In the event that the drive pattern must be interrupted (possibly due to traffic conditions or other
factors) the drive pattern can be resumed and, in most cases, the monitor can be completed.
CAUTION:
Perform this drive pattern on a level road as much as possible and strictly observe the posted speed
limits and traffic laws while driving.

G31593
Warmed up
sufficiently
Approx.100 km/h
(62 mph)
Vehicle Speed
Approx. 80 km/h
(50 mph)
0
Lock–up ON
Vehicle Speed
Stop
(Idling)
Maintain a constant speed or gradual acceleration (with the throttle open)
for 3 minutes or more.
*1
Normal acceleration
through all the gears from 1st to 4th(O/D) 05–228
– DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
HINT:
*1: Drive at such a speed in the uppermost gear, to engage lock–up. The vehicle can be driven at a speed
lower than that in the above diagram under the lock–up condition.
NOTICE:
It is necessary to drive the vehicle for approximately 30 minutes to detect DTC P0711 (ATF tempera-
ture sensor malfunction).

05KAS–02
– DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)05–225
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
INITIALIZATION
1. RESET MEMORY
CAUTION:
Perform the RESET MEMORY (AT initialization) when replacing the automatic transaxle assy, engine
assy or ECM.
NOTICE:
Intelligent tester II only
HINT:
The ECM memorizes the condition that the ECT controls the automatic transaxle assy and engine assy ac-
cording to those characteristics. Therefore, when the automatic transaxle assy, engine assy, or ECM has
been replaced, it is necessary to reset the memory so that the ECM can memorize the new information.
Reset procedure is as follows.
(a) Turn the ignition switch off.
(b) Connect the intelligent tester II to the DLC3.
(c) Turn the ignition switch to the ON position.
(d) Turn the intelligent tester II main switch on.
(e) Perform the reset memory procedure from the main menu.

G30843
05–226–
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
CAUTION:
After performing the RESET MEMORY, be sure to perform the ROAD TEST ( see page 05–219) de-
scribed earlier.
HINT:
The ECM is learned by performing the ROAD TEST.